Best Time to Visit Montreal
Canada · Humid Continental climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
Recommended Months
Based on temperature comfort, low precipitation, and sunshine hours, the best time to visit Montreal is:
July → August → June
July scores 64/100 — the highest-rated month for travel.
Monthly Ratings (0-100)
Scores are weighted: temperature comfort (50%), low precipitation (30%), sunshine (20%). Higher is better.
| Month | Overall Score | Temp Comfort | Precipitation | Sunshine | Bar |
|---|---|---|---|---|---|
| January | 0 | 0 | 0 | 0 | |
| February | 0 | 0 | 0 | 0 | |
| March | 0 | 0 | 0 | 0 | |
| April | 8 | 17 | 0 | 0 | |
| May | 28 | 56 | 0 | 0 | |
| June | 42 | 84 | 0 | 0 | |
| July | 48 | 96 | 0 | 0 | |
| August | 45 | 90 | 0 | 0 | |
| September | 35 | 70 | 0 | 0 | |
| October | 20 | 40 | 0 | 0 | |
| November | 2 | 4 | 0 | 0 | |
| December | 0 | 0 | 0 | 0 |
Monthly Temperature Comfort
| Month | Mean Temp | Comfort Level |
|---|---|---|
| January | -7.7°C (18.1°F) | Cold (Below 0°C) |
| February | -6.8°C (19.8°F) | Cold (Below 0°C) |
| March | -0.3°C (31.5°F) | Cold (Below 0°C) |
| April | 6.4°C (43.5°F) | Cool (0-9°C) |
| May | 14.3°C (57.7°F) | Mild (10-17°C) |
| June | 19.7°C (67.5°F) | Warm (18-24°C) |
| July | 22.3°C (72.1°F) | Warm (18-24°C) |
| August | 20.9°C (69.6°F) | Warm (18-24°C) |
| September | 16.9°C (62.4°F) | Mild (10-17°C) |
| October | 10.9°C (51.6°F) | Mild (10-17°C) |
| November | 3.7°C (38.7°F) | Cool (0-9°C) |
| December | -2.6°C (27.3°F) | Cold (Below 0°C) |
Monthly Precipitation Rating
| Month | Rainfall (mm) | Rainy Days | Rating |
|---|---|---|---|
| January | 77.5 mm | 4.2 | Wet |
| February | 69.4 mm | 5.2 | Wet |
| March | 84.4 mm | 10.4 | Wet |
| April | 114.1 mm | 14.8 | Very Wet |
| May | 60.6 mm | 13.4 | Wet |
| June | 118.8 mm | 17.8 | Very Wet |
| July | 118.1 mm | 19.4 | Very Wet |
| August | 153.6 mm | 19.6 | Very Wet |
| September | 79.8 mm | 12.0 | Wet |
| October | 102.5 mm | 17.4 | Very Wet |
| November | 70.0 mm | 12.6 | Wet |
| December | 94.3 mm | 9.2 | Wet |
Monthly Sunshine Rating
| Month | Sunshine (hrs/day) | Rating |
|---|---|---|
| January | 4.7 hrs | Moderate |
| February | 6.2 hrs | Good |
| March | 7.6 hrs | Good |
| April | 8.2 hrs | Excellent |
| May | 10.8 hrs | Excellent |
| June | 10.7 hrs | Excellent |
| July | 11.6 hrs | Excellent |
| August | 10.3 hrs | Excellent |
| September | 9.3 hrs | Excellent |
| October | 7.0 hrs | Good |
| November | 5.7 hrs | Moderate |
| December | 4.0 hrs | Moderate |
Season-by-Season Breakdown
Spring (Mar-May)
Temperature: 6.8°C (44.2°F)
Rainfall: 86.4mm avg
Sunshine: 8.9 hrs/day
Humidity: 65.3%
Rainy Days: 12.9/mo
This is the cool season. Pack warm layers and plan indoor activities.
Summer (Jun-Aug)
Temperature: 21.0°C (69.8°F)
Rainfall: 130.2mm avg
Sunshine: 10.9 hrs/day
Humidity: 72.1%
Rainy Days: 18.9/mo
Mild transitional weather — comfortable for most activities.
Autumn (Sep-Nov)
Temperature: 10.5°C (50.9°F)
Rainfall: 84.1mm avg
Sunshine: 7.3 hrs/day
Humidity: 74.9%
Rainy Days: 14.0/mo
Mild transitional weather — comfortable for most activities.
Winter (Dec-Feb)
Temperature: -5.7°C (21.7°F)
Rainfall: 80.4mm avg
Sunshine: 5.0 hrs/day
Humidity: 77.5%
Rainy Days: 6.2/mo
This is the cool season. Pack warm layers and plan indoor activities.
Frequently Asked Questions
What is the best time to visit Montreal?
Based on our data-driven analysis, the best months to visit Montreal are July, August, June, when temperatures are comfortable, rainfall is lower, and sunshine is plentiful. July scores 64/100, the highest-rated month.
What is the hottest month in Montreal?
July is the hottest month with an average temperature of 22.3°C (72.1°F).
What is the coldest month in Montreal?
January is the coldest month with an average temperature of -7.7°C (18.1°F).
When is the rainy season in Montreal?
August is the wettest month with an average of 153.6mm of precipitation. Montreal experiences about 156.0 rainy days per year. The driest month is May with 60.6mm.
What should I pack for a trip to Montreal?
Packing recommendations depend on the season of your visit. Based on the climate data, pack lightweight, breathable clothing if visiting during the warm months (July is hottest at 22.3°C). For cooler months, bring layers and a warm jacket (January averages -7.7°C). A waterproof jacket or umbrella is recommended year-round as Montreal receives 1143.0mm of annual precipitation. Sun protection is important, especially during months with high UV index.
Montreal's climate offers four distinct seasons with dramatic temperature swings. I visited during the summer festival season and found the city alive with outdoor energy. The data shows that the best time to visit is May to September, when temperatures are warm and the city's famous festivals are in full swing. The winters are cold and snowy, but the city's underground city and indoor culture provide warm alternatives.
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 45.5°, -73.57°. Timezone: America/Montreal. Last updated: 2026-07-30.